109*9.17 - 5.37*72 - 37*9.17 + 1.2*72 = 9.17*(109-37) - 72*(5.37-1.2) = 9.17*72 - 72*4.17 = 72*(9.17-4.17)= 72*5=360
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109*9.17 - 5.37*72 - 37*9.17 + 1.2*72 = 9.17*(109-37) - 72*(5.37-1.2) = 9.17*72 - 72*4.17 = 72*(9.17-4.17)= 72*5=360